Whats going on with these spots?

Grow Support Autoflowers
1

Hey guys, I have grown a number of autos and have not seen this before. What is this happening with the leaves

Mini gun auto
humidity 65%
plant is 10 days old
78 degrees F
mars hydro light 2000 25" from top
FFOF soil w/ added perlite
No feedings yet, usually wait until around 4 weeks.
Disregard the 93 degree temp on the thermometer in the pic, thermometer was outside and recorded a high outside. Plant is in a 3x3 tent with controlled temp and humidity.

Wondering what the spots on the leaves are. Look like dead spots or something. Never seen this. Thanks!

IMG_4098
IMG_40981512×2016 1 MB

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2

only water 6.5 PH night temps around 69-70F

3

Those look like burns from water droplets lensing in the light.
Personally I’d stop spraying with the lights on.
:v:

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4

Either coming in contact with the soil, or as mentioned, lensing from water droplets.

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5

Thank you guys! That is actually quite a relief. I have always sprayed my seedlings once or twice a day with the light on, however I just put in a new light that is much brighter and stronger and that is probably why it happened this time, makes total sense. Won’t be spraying anymore with the light on. Thank you!

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6

I’m going with a calcium deficiency. Edges of leaves are curling and the brown spots.